Dec 21 (Reuters) - Nickel prices fell on Thursday, pressured by muted consumption as well as increasing production and inventories in exchange warehouses.

Three-month nickel on the London Metal Exchange fell 1.3% to $16,635 per metric ton by 0441 GMT, and the most-traded January nickel contract on the Shanghai Futures Exchange dropped 1.5% to 129,530 yuan ($18,125.46) ton.

On a year-to-date basis, LME nickel is down 44.6% and SHFE nickel has dropped 35.8%, making the metal the worst performer across the nonferrous metals complex on the two bourses.

Indonesia in recent years had seen huge increase in investments into downstream nickel production, and some Chinese producers in the past year also ramped up their nickel cathode output, creating a surplus in the global nickel market.

"Nickel supply continues to grow, but consumption has not improved. The surplus pattern continues, and nickel supply and demand are bearish," said Huatai Futures in a report.

Nickel stockpiles in LME approved warehouses were last at 53,724 tons, the highest level since Jan. 10. Inventories in warehouses tracked by SHFE also climbed to 13,358 tons, the highest since Jan. 29.

Most recent deliveries into the LME system have been to warehouses located in South Korea, Taiwan, Singapore and the Netherlands.

China's nickel pig iron prices also dropped to 907.50 yuan a ton by Dec. 19, down 33% from a year earlier.

LME copper shed 0.2% to $8,564.50 a ton, zinc declined 0.4% to $2,562.50, lead edged down 0.2% at $2,078, tin eased 0.3% to $25,135, while aluminium rose 0.1% to $2,243.50.

SHFE copper was almost unchanged at 68,900 yuan a ton, tin eased 0.1% to 208,890 yuan, lead was unchanged at 15,650 yuan, while aluminium rose 0.1% to 18,960 yuan and zinc increased 0.3% to 21,140 yuan.

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DATA/EVENTS (GMT)

1330 US GDP Final Q3

1330 US Initial Jobless Clm Weekly

1330 US Philly Fed Business Indx Dec

($1 = 7.1463 yuan) (Reporting by Mai Nguyen in Hanoi; Editing by Rashmi Aich)